Blender Git Commit Log

Git Commits -> Revision bbe6d44

Revision bbe6d44 by Kévin Dietrich (master)
January 22, 2021, 15:08 (GMT)
Cycles: optimize device updates

This optimizes device updates (during user edits or frame changes in
the viewport) by avoiding unnecessary computations. To achieve this,
we use a combination of the sockets' update flags as well as some new
flags passed to the various managers when tagging for an update to tell
exactly what the tagging is for (e.g. shader was modified, object was
removed, etc.).

Besides avoiding recomputations, we also avoid resending to the devices
unmodified data arrays, thus reducing bandwidth usage. For OptiX and
Embree, BVH packing was also multithreaded.

The performance improvements may vary depending on the used device (CPU
or GPU), and the content of the scene. Simple scenes (e.g. with no adaptive
subdivision or volumes) rendered using OptiX will benefit from this work
the most.

On average, for a variety of animated scenes, this gives a 3x speedup.

Reviewed By: #cycles, brecht

Maniphest Tasks: T79174

Differential Revision: https://developer.blender.org/D9555

Commit Details:

Full Hash: bbe6d44928235cd4a5cfbeaf1a1de78ed861bb92
Parent Commit: 131a758
Lines Changed: +1084, -338

40 Modified Paths:

/intern/cycles/blender/blender_curves.cpp (+1, -4) (Diff)
/intern/cycles/blender/blender_geometry.cpp (+1, -1) (Diff)
/intern/cycles/blender/blender_mesh.cpp (+2, -9) (Diff)
/intern/cycles/blender/blender_object.cpp (+0, -3) (Diff)
/intern/cycles/blender/blender_particles.cpp (+2, -2) (Diff)
/intern/cycles/blender/blender_session.cpp (+0, -5) (Diff)
/intern/cycles/blender/blender_shader.cpp (+1, -3) (Diff)
/intern/cycles/blender/blender_sync.cpp (+3, -8) (Diff)
/intern/cycles/device/device_memory.h (+67, -2) (Diff)
/intern/cycles/render/attribute.cpp (+74, -1) (Diff)
/intern/cycles/render/attribute.h (+10, -0) (Diff)
/intern/cycles/render/background.cpp (+3, -2) (Diff)
/intern/cycles/render/bake.cpp (+15, -5) (Diff)
/intern/cycles/render/bake.h (+4, -1) (Diff)
/intern/cycles/render/film.cpp (+4, -4) (Diff)
/intern/cycles/render/geometry.cpp (+431, -105) (Diff)
/intern/cycles/render/geometry.h (+34, -4) (Diff)
/intern/cycles/render/hair.cpp (+19, -14) (Diff)
/intern/cycles/render/hair.h (+1, -1) (Diff)
/intern/cycles/render/image.cpp (+16, -6) (Diff)
/intern/cycles/render/image.h (+4, -1) (Diff)
/intern/cycles/render/integrator.cpp (+49, -25) (Diff)
/intern/cycles/render/integrator.h (+12, -2) (Diff)
/intern/cycles/render/light.cpp (+18, -9) (Diff)
/intern/cycles/render/light.h (+21, -2) (Diff)
/intern/cycles/render/mesh.cpp (+26, -18) (Diff)
/intern/cycles/render/mesh.h (+1, -1) (Diff)
/intern/cycles/render/object.cpp (+107, -29) (Diff)
/intern/cycles/render/object.h (+24, -4) (Diff)
/intern/cycles/render/osl.cpp (+3, -3) (Diff)
/intern/cycles/render/particles.cpp (+10, -5) (Diff)
/intern/cycles/render/particles.h (+4, -2) (Diff)
/intern/cycles/render/scene.cpp (+38, -26) (Diff)
/intern/cycles/render/session.cpp (+1, -7) (Diff)
/intern/cycles/render/shader.cpp (+32, -13) (Diff)
/intern/cycles/render/shader.h (+21, -2) (Diff)
/intern/cycles/render/svm.cpp (+3, -3) (Diff)
/intern/cycles/render/tables.cpp (+10, -5) (Diff)
/intern/cycles/render/tables.h (+4, -1) (Diff)
/intern/cycles/util/util_array.h (+8, -0) (Diff)
By: Miika HämäläinenLast update: Nov-07-2014 14:18MiikaHweb | 2003-2021